Newcastle are 13th in the Premier League table (Image: Newcastle Chronicle)

“The wound is quite nasty and, according to the doctor, he will have a scar for the rest of his life.”

Peter, from Blackpool, received treatment from paramedics at the stadium before spending the rest of the day in A&amp;E.

His dad said: “It was a shock because you think these sorts of things have disappeared from football.

“I worked in Newcastle for two or three years and the people are fantastic. We were looking forward to the match but obviously it was some moron.

“If there are any decent fans that saw this incident and know the culprit I would urge them to contact police.”

Newcastle fans watch their side beat United (Image: Newcastle Chronicle)

Northumbria Police has launched an investigation into the incident.

A police spokesman said: “We are aware of an incident at the match between Newcastle United and Manchester United on Sunday afternoon during which an away fan was struck with a bottle inside St James’ Park.

“The male fan received treatment from paramedics for a cut to his face that he sustained during the incident.

“Enquiries are ongoing to identify the person responsible and to take appropriate action against them.”